HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Optimal Transmission Radius for Energy Efficient Broadcasting Protocols in Ad Hoc and Sensor Networks

Abstract : We investigate the problem of minimum energy broadcasting in ad hoc networks where nodes have capability to adjust their transmission range. The minimal transmission energy needed for correct reception by neighbor at distance r is proportional to r^alpha + c_e, alpha and c_e being two environment-dependent constants. We demonstrate the existence of an optimal transmission radius, computed with a hexagonal tiling of the network area, that minimizes the total power consumption for a broadcasting task. This theoretically computed value is experimentally confirmed. The existing localized protocols are inferior to existing centralized protocols for dense networks. We present two localized broadcasting protocols, based on derived 'target' radius, that remain competitive for all network densities. The first one, TR-LBOP, computes the minimal radius needed for connectivity and increases it up to the target one after having applied a neighbor elimination scheme on a reduced subset of direct neighbors. In the second one, TR-DS, each node first considers only neighbors whose distance is no greater than the target radius (which depends on the power consumption model used), and neighbors in a localized connected topological structure such as RNG or LMST. Then, a connected dominating set is constructed using this subgraph. Nodes not selected for the set may be sent to sleep mode. Nodes in selected dominating set apply TR-LBOP. This protocol is the first one to consider both activity scheduling and minimum energy consumption as one combined problem. Finally, some experimental results for both protocols are given, as well as comparisons with other existing protocols. Our analysis and protocols remain valid if energy needed for packet receptions is charged.
Document type :
Journal articles
Complete list of metadata

Cited literature [30 references]  Display  Hide  Download

Contributor : François Ingelrest Connect in order to contact the contributor
Submitted on : Tuesday, November 7, 2006 - 11:16:38 AM
Last modification on : Wednesday, February 23, 2022 - 11:58:02 AM
Long-term archiving on: : Saturday, May 14, 2011 - 12:26:38 AM




François Ingelrest, David Simplot-Ryl, Ivan Stojmenovic. Optimal Transmission Radius for Energy Efficient Broadcasting Protocols in Ad Hoc and Sensor Networks. IEEE Transactions on Parallel and Distributed Systems, Institute of Electrical and Electronics Engineers, 2006, 17 (6), pp.536-547. ⟨10.1109/TPDS.2006.74⟩. ⟨inria-00112047⟩



Record views


Files downloads